Question

Select the statement that best demonstrates the evolutionary relationship between the Eunotosaurus africanus and modern turtles.


There was a gradual change of large, elongated ribs in the Eunotosaurus africanus into a hard shell of modern turtles.


The body style and size of the Eunotosaurus africanus and modern turtles shows an evolutionary relationship between the two.


There is no evolutionary relationship between the Eunotosaurus africanus and modern turtles.


The presence of teeth in the Eunotosaurus africanus shows evolutionary relationship.

Answer 1

There was a gradual change of large, elongated ribs in the Eunotosaurus africanus into a hard shell of modern turtles.

Explanation: Eunotosaurus has broadened, flattened ribs that are interpreted as an early step toward the turtle carapace, providing direct anatomical evidence of an evolutionary transition.